| Acronym | Definition |
|---|
| TAA | Total (Active) Aircraft Authorization |
| TAA | Trade Adjustment Assistance |
| TAA | Trentino-Alto Adige (Italy; autonomous region) |
| TAA | Training and Assessment |
| TAA | The American Academy (online education; Salt Lake City, UT) |
| TAA | Temporal Anti-Aliasing (graphics processing) |
| TAA | Tax Administration Act (various locations) |
| TAA | Terapia Asistida con Animales (Spanish: Assisted Therapy with Animals) |
| TAA | Time Account Adjustment |
| TAA | Terminal Arrival Area |
| TAA | Technical Advisor Analyst |
| TAA | Type Access Analyzer |
| TAA | Tactical Airsoft Arena (Rockville, MD) |
| TAA | Tactical Asset Allocation |
| TAA | Transitional Adjustment Assistance (NAFTA) |
| TAA | Texas Apartment Association |
| TAA | Tumor-Associated Antigen |
| TAA | Teaching Assistants' Association (Wisconsin) |
| TAA | Trans Australia Airlines |
| TAA | Trans-Australia Airlines (defunct Australian airline) |
| TAA | Trade Agreement Act |
| TAA | Technical Assistance Agreement |
| TAA | Total Army Analysis |
| TAA | Tactical Assembly Area |
| TAA | Thioacetamide |
| TAA | Take Appropriate Action |
| TAA | Turkish-American Association |
| TAA | Technologically Advanced Aircraft |
| TAA | Turkish Aeronautical Association (est. 1925) |
| TAA | Ticket Agents Association (UK; entertainment) |
| TAA | Taiwanese Association of America |
| TAA | Thai AirAsia |
| TAA | Tanzania Airports Authority |
| TAA | Terminal Arrival Area (aviation) |
| TAA | Thomas Alleyne Academy (UK) |
| TAA | Teacher Achievement Award (various locations) |
| TAA | Tribes Aerial Assault (gaming) |
| TAA | Transverse Aortic Arch |
| TAA | Texas Aquaculture Association |
| TAA | Tallahassee Auto Auction (Tallahassee, FL) |
| TAA | Trans Atlantic Airlines |
| TAA | Test Automation Alliance |
| TAA | Technical Approval Authority |
| TAA | Tachyarrhythmia Absoluta (cardiology) |
| TAA | Taos Art Association (New Mexico, USA) |
| TAA | Tactical Air Army |
| TAA | Telecom Agent Association |
| TAA | Target Audience Analysis |
| TAA | Technology Assistance Agreement |
| TAA | Track Access Agreement (UK railways) |
| TAA | Tyler Apartment Association (Tyler, TX) |
| TAA | Technology Area Assessment |
| TAA | Target Aspect Angle |
| TAA | Temporary Accumulation Area |
| TAA | Travel Agent Arbiter |
| TAA | Tactical Army Automation |
| TAA | Terminal Advanced Automation |
| TAA | Transit Advertising Association |
| TAA | Technical Application Architecture (Sprint) |
| TAA | Teens Act for AIDS (est. 2005) |
| TAA | Telecommunications Associates of America |
| TAA | Tanker Alert Area |
| TAA | Taekwondo Antibes Academy (France) |
| TAA | Turbine Alternator Assembly |
| TAA | Tactical Automation Appraisal |
| TAA | Triaxial Angular Accelerometer |
| TAA | Tactical Aerospace Assessment |
| TAA | Transmitting Antenna Array |
| TAA | Tri-p-Anisylamine |
| TAA | Theater Area Army |
| TAA | Technical Airworthiness Arrangements (Canada) |
| TAA | Team Assignment Agreement |
| TAA | Time And Attendence |
| TAA | Transfer Allowed Acknowledgement (SS7) |
| TAA | Track Acquisition Achieved |
| TAA | Training Advisory Alert |
| TAA | Thoracic Aortic Aneuryism |
| TAA | Total Army Authorization |
| TAA | Taiwan Architects Association (Taiwan) |
| TAA | Technological Advances in Aeronautics (conference) |
| TAA | Toshima-Ku Archery Association (est. 1953; Tokyo, Japan) |
| TAA | Transmission Ability of the Atmosphere (meteorology) |